Tool holder



FIG. 1 illustrates a perspective view of a tool holder;

FIG. 2 illustrates a right side elevation view thereof;

FIG. 3 illustrates a left side elevation view thereof;

FIG. 4 illustrates a front elevation view thereof;

FIG. 5 illustrates a back elevation view thereof;

FIG. 6 illustrates a top plan view thereof; and,

FIG. 7 illustrates a bottom plan view thereof. 

CLAIM The ornamental design for a tool holder, as shown and described. 